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98 Commits

Author SHA1 Message Date
Anton Khirnov
8b573ddda7 hevc: remove superfluous assignments and checks 2014-11-17 09:26:45 +01:00
Anton Khirnov
eac3ac1fe0 hevc: eliminate an unneeded intermediate variable 2014-11-17 09:26:45 +01:00
Anton Khirnov
eb335f3c5c hevc: reduce variable scope 
Also, collapse the array into a scalar, since only one value is needed
at a time.
 2014-11-17 09:26:45 +01:00
Anton Khirnov
84c0ece5fd hevc: further reduce code duplication in hls_prediction_unit() 2014-11-17 09:25:15 +01:00
Anton Khirnov
a7b365ae19 hevc: reduce code duplication in hls_prediction_unit() 2014-11-17 09:25:12 +01:00
Anton Khirnov
16c01fb434 hevc: remove an unused function parameter 2014-11-17 09:25:12 +01:00
Anton Khirnov
84b9463984 hevc: remove a redundant line 
pred_mode is overwritten a few lines immediately below.
 2014-11-17 09:25:12 +01:00
Anton Khirnov
2c6a7f9348 hevc: do not store rqt_root_cbf in the context 
It does not need to be accessed outside of hls_coding_unit().
 2014-11-17 09:25:12 +01:00
Anton Khirnov
920bca3e23 hevc: do not store pcm_flag in the context 
It does not need to be accessed outside of hls_coding_unit().
 2014-11-17 09:25:12 +01:00
Vittorio Giovara
b1b1a7370e display: fix order of operands 
CC: libav-stable@libav.org
Bug-Id: CID 1238828 / CID 1238832
 2014-11-13 01:41:25 +01:00
Anton Khirnov
7ea1b3472a lavc: deprecate the use of AVCodecContext.time_base for decoding 
When decoding, this field holds the inverse of the framerate that can be
written in the headers for some codecs. Using a field called 'time_base'
for this is very misleading, as there are no timestamps associated with
it. Furthermore, this field is used for a very different purpose during
encoding.

Add a new field, called 'framerate', to replace the use of time_base for
decoding.
 2014-10-15 06:37:43 +00:00
Christophe Gisquet
cf6090dc62 hevc: use intreadwrite 
When dealing with MVs, both components may be processed at a time.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-08-12 10:03:20 +00:00
Christophe Gisquet
d1b1c3bb5e hevc: reorder loops 
iterate over memory in a more continuous order

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-08-12 09:57:05 +00:00
Anton Khirnov
70211539a3 hevc: deobfuscate slice/tile boundary handling for DBF 
Use named constants instead of magic numbers, avoid using variables with
inverse meaning from what their name implies.
 2014-08-09 16:13:48 +00:00
Anton Khirnov
4d1ff2a489 hevc: calculate the dbf strength in hls_pcm_sample() only if dbf is enabled 2014-08-09 16:13:11 +00:00
Anton Khirnov
e76f2d1197 hevc: eliminate the last element from TransformTree 
Replace it by passing an additional parameter to transform_unit()
 2014-07-28 08:10:35 +00:00
Anton Khirnov
4aa80808bc hevc: eliminate unnecessary cbf_c{b,r} arrays 
They are replaced by passing additional parameters to the transform
functions.
 2014-07-28 08:09:18 +00:00
Anton Khirnov
0daa255463 hevc: do not store the transform inter_split flag in the context 
It does not need to be preserved.
 2014-07-28 08:05:47 +00:00
Anton Khirnov
53a11135f2 hevc: simplify splitting the transform tree blocks 2014-07-28 08:04:19 +00:00
Anton Khirnov
e36a2f4c52 hevc: eliminate an unnecessary array 
We do not need to store the value of the split flag.
 2014-07-28 08:03:53 +00:00
Gildas Cocherel
458e7c9483 hevc: implement pic_output_flag handling 
Sample-Id: OPFLAG_B_Qualcomm_1.bit, OPFLAG_C_Qualcomm_1.bit
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-07-11 08:52:54 +00:00
Mickaël Raulet
f43789b76e hevc: set the keyframe flag on output frames 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-07-11 08:43:01 +00:00
Mickaël Raulet
1493b237bd hevc: Replace nal type chek with equivalent IS_IRAP macro 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-07-11 08:41:32 +00:00
Vittorio Giovara
0569a7e0bd hevc: parse display orientation SEI message 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-07-09 10:18:06 -04:00
Luca Barbato
df949b645b hevc: Use the local context variable when needed 2014-07-02 23:30:49 -04:00
Diego Biurrun
c67b449beb dsputil: Split bswap*_buf() off into a separate context 2014-06-22 18:22:31 -07:00
Justin Ruggles
9e500efdbe Add av_image_check_sar() and use it to validate SAR 2014-06-20 10:39:33 -04:00
Anton Khirnov
a1c2b48018 hevc: templatize intra_pred 2014-05-19 07:10:03 +02:00
Michael Niedermayer
ed06e5d92b hevc: Do not turn 32bit timebases into negative numbers 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
 2014-03-09 17:22:53 +01:00
Michael Niedermayer
6cc94e9719 hevc: use av_mallocz() for allocating tab_ipm 
Fixes use of uninitialized memory and out of stack array read.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
 2014-03-09 17:08:11 +01:00
Luca Barbato
521726ff57 hevc: Always consider VLC NALU type mismatch fatal 
Sample-Id: 00001667-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2014-02-19 16:59:40 +01:00
Anton Khirnov
b25e84b739 hevc: check that the VCL NAL types are the same for all slice segments of a frame 
Fixes possible invalid memory access for mismatching skipped/non-skipped
slice segments.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Sample-Id: 00001533-google
 2014-02-04 10:39:07 +01:00
Luca Barbato
816e5b9970 hevc: Reject impossible slice segment 
A dependent slice cannot have address 0.
Prevent an out of array bound load in ff_hevc_cabac_init().

Sample-Id: 00001406-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2014-02-01 17:04:49 +01:00
Luca Barbato
e22ebd04bc hevc: Bound check cu_qp_delta 
The T-REC-H.265-2013044 page 91 states it has to be in the range
[-(26 + s->sps->qp_bd_offset / 2), (25 + s->sps->qp_bd_offset / 2)].
 2014-01-21 11:59:54 +01:00
Luca Barbato
0d999333f9 hevc: Bound check slice_qp 
The T-REC-H.265-2013044 page 79 states it has to be in the range
[-s->sps->qp_bd_offset, 51].

Sample-Id: 00001386-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2014-01-21 11:59:30 +01:00
Luca Barbato
838740e642 hevc: Prevent some integer overflows 
get_ue_golomb_long() returns an unsigned.

Sample-Id: 00001541-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2014-01-21 11:59:18 +01:00
Michael Niedermayer
d5c15ebeaf hevc: Fix modulo operations 
Keep qp fields within the range.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-01-21 11:57:43 +01:00
Guillaume Martres
e588615d93 hevc: fix decoding of one PU wide files 
For those the block size may be larger than the source linesize (if the
edges are not allocated).

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-01-09 09:46:13 +01:00
Mickaël Raulet
5c3fa74b94 hevc: support luma bit depth != chroma bit depth for PCM coding units 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-12-20 19:39:53 +01:00
Gildas Cocherel
321cb8b048 hevc: store profile and level in AVCodecContext 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-12-20 19:36:24 +01:00
Gildas Cocherel
2a41826bea lavc: add HEVC profiles names 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-12-20 19:35:27 +01:00
Guillaume Martres
17a10d51b8 hevc: set time_base when possible 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-12-11 20:39:54 +01:00
Gildas Cocherel
33452aede6 hevc: store the VPS list as an AVBufferRef, just like the others *PS 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-12-11 20:39:54 +01:00
Michael Niedermayer
b769cf4b44 hevc: do not dereference pointer before NULL check in verify_md5() 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-12-11 20:39:54 +01:00
Vittorio Giovara
acb77dff6a hevc: parse frame packing arrangement SEI messages and save relevant stereo3d information 2013-12-09 16:02:43 +01:00
Ronald S. Bultje
458446acfa lavc: Edge emulation with dst/src linesize 
Allow supporting files for which the image stride is smaller than
the maximum block size + number of subpel mc taps, e.g. a 64x64 VP9
file or a 16x16 VP8 file with -fflags +emu_edge.
 2013-11-15 10:16:27 +01:00
Jan Ekström
885ec92425 hevc: Use parsed VUI colorimetry in avcodec 
Also limit the parsed VUI values to known valid ones.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2013-11-04 16:03:11 +01:00
Guillaume Martres
064698d381 Add HEVC decoder 
Initially written by Guillaume Martres <smarter@ubuntu.com> as a GSoC
project. Further contributions by the OpenHEVC project and other
developers, namely:

Mickaël Raulet <mraulet@insa-rennes.fr>
Seppo Tomperi <seppo.tomperi@vtt.fi>
Gildas Cocherel <gildas.cocherel@laposte.net>
Khaled Jerbi <khaled_jerbi@yahoo.fr>
Wassim Hamidouche <wassim.hamidouche@insa-rennes.fr>
Vittorio Giovara <vittorio.giovara@gmail.com>
Jan Ekström <jeebjp@gmail.com>
Anton Khirnov <anton@khirnov.net>
Martin Storsjö <martin@martin.st>
Luca Barbato <lu_zero@gentoo.org>
Yusuke Nakamura <muken.the.vfrmaniac@gmail.com>
Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Diego Biurrun <diego@biurrun.de>

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-10-31 20:19:59 +01:00